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Contingencies and Litigation (Tables)
 9 Months Ended
Sep. 30, 2019
Commitments and Contingencies Disclosure [Abstract]  
Brazil Tax Contingencies Below is a summary of our Brazilian tax contingencies:
 
 
September 30,
2019
 
December 31,
2018
Tax contingency - unreserved
 
$
425

 
$
500

Escrow cash deposits
 
53

 
58

Surety bonds
 
98

 
106

Letters of credit
 
87

 
104

Liens on Brazilian assets
 
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